This is pretty funny, but all kidding aside:
There's no way Hypocrisy is into Nazism, they are waaaaaaaaaaay too nice to the fans. I've never seen a group more thankful of their fans and just overall really enthusiastic toward a crowd. It was a real melting pot of fans too, all sorts of skin color everywhere.
Two groups that have a ton of skinhead fans are Slayer and Danzig. I don't understand the Danzig appeal, but I really REALLY don't get the Slayer appeal, since Tom Araya isn't even sort of white!